linux-kernel - Re: [PATCH 1/1] of/fdt: simplify early_init_dt

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Message-ID: <CAErSpo6Upf=QPn7=Cd=XDazXVnSPhb-9gDZjH9_CcY37-xUKLw@mail.gmail.com>
Date:	Tue, 4 Nov 2014 10:03:52 -0700
From:	Bjorn Helgaas <bhelgaas@...gle.com>
To:	Grant Likely <grant.likely@...aro.org>
Cc:	Zhen Lei <thunder.leizhen@...wei.com>,
	Rob Herring <robh+dt@...nel.org>,
	devicetree <devicetree@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Zefan Li <lizefan@...wei.com>, Xinwei Hu <huxinwei@...wei.com>,
	Kefeng Wang <wangkefeng.wang@...wei.com>
Subject: Re: [PATCH 1/1] of/fdt: simplify early_init_dt_verify

On Tue, Nov 4, 2014 at 9:20 AM, Grant Likely <grant.likely@...aro.org> wrote:
> On Tue, 28 Oct 2014 19:51:05 +0800
> , Zhen Lei <thunder.leizhen@...wei.com>
>  wrote:
>> put off initial_boot_params = params; until all checks finished. If any check
>> failed, initial_boot_params is equal NULL, base upon bss segment initial value.
>>
>> Signed-off-by: Zhen Lei <thunder.leizhen@...wei.com>
>
> Interesting. I received exactly the same patch from Bjorn Helgaas. Were
> the two of you working together, or is this merely a coincedence?

LOL, that's really funny.  We're not working together, so it's a total
coincidence :)

>> ---
>>  drivers/of/fdt.c | 10 ++++------
>>  1 file changed, 4 insertions(+), 6 deletions(-)
>>
>> diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
>> index d1ffca8..325c638 100644
>> --- a/drivers/of/fdt.c
>> +++ b/drivers/of/fdt.c
>> @@ -994,14 +994,12 @@ bool __init early_init_dt_verify(void *params)
>>       if (!params)
>>               return false;
>>
>> -     /* Setup flat device-tree pointer */
>> -     initial_boot_params = params;
>> -
>>       /* check device tree validity */
>> -     if (fdt_check_header(params)) {
>> -             initial_boot_params = NULL;
>> +     if (fdt_check_header(params))
>>               return false;
>> -     }
>> +
>> +     /* Setup flat device-tree pointer */
>> +     initial_boot_params = params;
>>
>>       return true;
>>  }
>> --
>> 1.8.0
>>
>>
>> --
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